From 91340c358b694be92c78a0f7883cec54e64b3ef6 Mon Sep 17 00:00:00 2001
From: Stephen Crane <jscrane@gmail.com>
Date: Wed, 17 Dec 2014 15:21:42 +0000
Subject: [PATCH] cleanup

---
 ps2drv.cpp | 21 ---------------------
 ps2drv.h   |  9 +--------
 2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/ps2drv.cpp b/ps2drv.cpp
index dbfb77b..8056077 100644
--- a/ps2drv.cpp
+++ b/ps2drv.cpp
@@ -4,7 +4,6 @@
 #define BUFFER_SIZE 16
 static volatile uint8_t buffer[BUFFER_SIZE];
 static volatile uint8_t head, tail;
-static bool isbrk;
 static uint8_t DataPin;
 
 // The ISR for the external interrupt
@@ -51,26 +50,6 @@ bool PS2Driver::available() {
 	return true;
 }
 
-bool PS2Driver::isbreak() {
-	bool b = isbrk;
-	isbrk = false;
-	return b;
-}
-
-int PS2Driver::read() {
-	if (head == tail)
-		return -1;
-
-	uint8_t i = tail+1;
-	if (i == BUFFER_SIZE) i = 0;
-	tail = i;
-	if (buffer[i] == 0xf0) {
-		isbrk = true;
-		return read();
-	}
-	return buffer[i];
-}
-
 unsigned PS2Driver::read2() {
 	if (head == tail)
 		return 0;
diff --git a/ps2drv.h b/ps2drv.h
index bc23760..beb303b 100644
--- a/ps2drv.h
+++ b/ps2drv.h
@@ -18,17 +18,10 @@ public:
 	 */
 	bool available();
 
-	/**
-	 * returns true if the key has been released
-	 */
-	bool isbreak();
-
 	/**
 	 * Returns the scancode last received from the keyboard.
-	 * If there is no char available, -1 is returned.
+	 * If there is no char available, 0 is returned.
 	 */
-	int read();
-
 	unsigned peek();
 
 	unsigned read2();